Belt clamp



1932- c. R. EDM'ONDSON 1,843,023

BELT CLAMP Filed Nov. 14, 1930 f% z 5 11 11 f 10 Z I 1 10 1 i0 INVENTOR ATTORNEY Patented Jan. 26, 1932 PATENT OFFICE CARY It. EIHVIONDSON, 0F WINFIELD, KANSAS BELT CLAMP Application filed. November 14, 1930. Serial No.i495,760.

This invention relates to 'belt clamps and more particularly to a clamp for connecting the endsofanendless belt for use on agricultural machines and in fact anywhere that powerlis to be transmitted by pulleys and a belt, and the primary object of the invention is to provide abelt clamp which will be devoid of any securing or holding elements requiring to be fitted through the ends of a belt, and which clamp may be readily applied in a moments time and when it is desired to dismount the belt may be as readily and quickly separated from the belt.- v j i Another objectof the invention is to provide a belt clamp so' constructed that the clamp means for the connected ends of the belt will not be subjected to any erosive stresses as is the case where the ordinary clamping devices are employed.

' Another object of the invention is to pro: vide a clamp so constructed that it will so grip and connect theends of the belt to which it is applied that there will be no likelihood of any separation of the belt ends regardless of the stressesto which the belt may be subjected or the speed at which it is caused to travel.

Y 7 This invention also consists in certain other features of construction and in the combination andarrangement ofthe several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims, it being understood of course that minor changes may be made so long as they fall within the scope of the claims. i

In describing my inventionin detail, referenceswill be had to the accompanying drawings,fwherein like characters denote like or corresponding parts throughout the several views, and in which zv p Figure 1 is a vertical transverse sectional view through the clamp embodying the invention, the view. illustrating the positions in which the parts of the clampare placed,' as

Figure 4 is a vertical longitudinal sectional view taken on the line 1-4: of Figure 2 looking in the direction indicated by the arrows.

Figure 5 is a similar view illustrating a modification of the invention.

The clamp embodying the invention, in that form shown in Figures 1 to 4 inclusive, comprises a body 1 which is preferlbly of cast metal and this body is exteriorly of approximately cylindrical form asbest shown in Figures 1 and 2 of the drawings, and the body is formed with a longitudinally extending recess 2 and this recess is open at that side of the body which is to be disposed against the end portions of the belt to be connected and the two side walls of the recess are concavely curved in an outward direction and formed each with a series of longitudinally extending ribs 3 which are approximately V shaped in cross section. At each side of the open side of the recess 2. the body'l'is formed with a laterally outwardly curving rib 4 having a rounded surface 5 and it will be observed by reference to Figures 1 and 2 of the drawings that the recess is somewhat restricted at its open side and, in practice,'the round ed portions 5 of the walls of the recess are so spaced as to snugly accommodate between them the assembled ends 6 of the belt 7 which ends are to be connected by the clamp.

Preferably the clamp body is reinforced by a web 8 extending transversely within the recess 2 and between the inner surfaces of the side walls of the recess and, if desired, a longitudinal groove 9 may be formed in the inner side of the wall of the recess between the brace the Op osite sides of the web.

' In the embodiment of the invention as above describech'clamping rolls 10 are employed and, in this embodiment the rolls are four in number and each roll is of cylindri cal form and provided about its circumference with a series of longitudinally extending ribsll which are of the same contour as the ribs 3 and these rolls are ofsuch length that when they areinserted endwise, into the opposite ends of the rec'ess 2 andin position to] lie between the insertedb'elt ends and the side walls of the.recess,their inner ends will'abut against the opposite sides of. the web 8and their outer ends will be substantially flush? withthe ends ofthe body 1. a The ribs 11 upon the rolls 10 mesh with the ribs 3 upon the inner sides of the walls of the recess 2 and, :in clamping the ends of a belt, the belt ends are inserted into the recess in thebody 1, thebodyat this time being disposed in position with the upper side of its recess presented upwardly, and, at this time, the rolls 10 will seat in a wider portion offthe recess 2 but, when the belt ends have been fittedlintothe recess and between the rolls therein, and the clamp isshifted in the direction of thebelt, the end'portions of. the'belt.-;to be connected, will move between the rolls and past the same until the parts have assumed the positions shown in Figure 1.

However, whenthe belt with the clamp embodying the invention, is overturned, the

ro-llsllO will ride downwardly along the ribbed surfaces 30f the recess walls, and" as these surtaces are arranged in planes, con verging'inthe direction'ot the open side of the recess, the, rolls will be caused-to bear against theopposite sides of the belt ends and, when the belt ends arepulled in an outward, direction and the device has been inverted from the position shown in Figure '1, the pull exerted upon thebelt or upon the clamping means will result in therib's '11 bits ing into the surfaces of thebelt ends thereby firmly clamping andv retaining the saidbelt ends within the recess in the. body 1 andin mutual binding contact with each other, and

at thispoint itwill beunderstood that the sureof ama ximum clam-ping of the belt ends by -the sa i drolls. Sh ould it become necessary" to separatethe ends of the belt,'for any reapulling stresses imposed on the belt, as it travelse over the pulleys, will serve merely to in.

7 son, this may be readily accomplished eitherfirst dismounting the belt fromthe pulley about which it is trained or imparting travel to the belt until the clamp is at a point in the length of the lower stretch of the belt,

whereupon an upward thrust upon the clamping body will so displace the ribbed walls of therefore corresponding parts are indicated by the samei'eference numerals primed, ex-

:cept that in this embodiment the web 8 is omitted, andtherefore in this embodiment instead-of four of the rolls being employed only two are required. f 7

What I claim is:,

1. A belt clamp of the class described comprisinga bod'y'having a longitudinal recess, in one side, to accommodate-the'ends'of a belt'to be connected, the sidewalls'of the recess converging in the direction of the open side of the recess, and cylindrical clamping rolls disposed within the recess to engage between the side walls thereof and the. opposite sides of the belt ends, the'side'wallsot the recess having longitudinal ribs. j

2. A belt clamp of the class described comprising a body having a longitudinal recess, in; one side, to accommodatethe endsof a belt to be connected, the side walls of the recess converging in the direction of the open,

side'of the recess, and cylindrical clamping rolls disposed. within the recess to engage bd tween the sidewalls thereof and the opposite sides of the belt ends, the side walls ofthe recess having longitudinal V-shap'ed, ribs". A belt clamp of'the class described com; prising a body having ajlongitudinal recess,

in one side, to accommodatetheends 0f'a belt to be connected, the side walls ofthe'r'e; cess converging in thedirection of the open side of the recess, .andcylindrical clamping rolls disposedzwithin .the recess to engage between the side walls thereof and the oppo- V sitesidesot the belt ends, the side walls of I the recess having longitudinal'V-shaped ribs, thejsaid clamping rolls each having a circum ferential series of longitudinal V-shaped ribs.

A belt clamp of the class described comprising a body having a longitudinal recess, in one side, to accommodate a the. ends of a belt to be connected, theTside, walls ofjthe recess converging in the direction of the open side of the recess, and cylindrical clamping rolls disposed within the. recess to engage be tween the side walls thereof and the opposite sides of the belt'ends, the inner wall otthe recesshavingfa longitudinal groove to ac commodate the end edges of the belt ends; Y

5. A belt clamp of the class described com- 7 prising a body having a longitudinal recess, in one side, to accommodate the ends of a belt to be connected, a reinforcing web spanning the recess between its ends, the side walls of the recess converging in the direction of the open side of the recess, and cylindrical clamping rolls disposed within the recess at opposite sides of the web to engage between the side walls thereof and the opposite sides of the belt ends.

I testimony whereof I aifix my signature.

GARY R. EDMONDSON. 

